Repair Kits Available By Part Number Section 2 Page - GAMECO
Repair Kits Available By Part Number Section 2 Page - GAMECO
Repair Kits Available By Part Number Section 2 Page - GAMECO
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WARNING: Installation, usage and maintenance of this product<br />
must be in compliance with all Engineered Controls International,<br />
Inc. instructions as well as requirements and provisions of NFPA<br />
#54, NFPA #58, DOT, ANSI, all applicable federal, state, provincial<br />
and local standards, codes, regulations and laws.<br />
Inspection and maintenance on a periodic basis is essential.<br />
Installation and maintenance should be performed only by qualified<br />
personnel.<br />
Be sure all instructions are read and understood before installation,<br />
operation and maintenance. These instructions must be<br />
passed along to the end user of the product.<br />
CAUTION: Contact or inhalation of liquid propane, ammonia and<br />
their vapors can cause serious injury or death! NH3 and LP-Gas<br />
must be released outdoors in air currents that will insure dispersion<br />
to prevent exposure to people and livestock. LP-Gas must be kept<br />
far enough from any open flame or other source of ignition to<br />
prevent fire or explosion! LP-Gas is heavier than air and will not<br />
disperse or evaporate rapidly if released in still air.<br />
Operating Instructions<br />
These instructions must be included with other tank operating<br />
instructions.<br />
Chek-Lok Excess Flow Valves<br />
ECII ® Chek-Lok excess flow valves are designed to provide a convenient<br />
means of withdrawing liquid from stationary tanks prior to moving the<br />
tank. These valves are not intended for permanent liquid withdrawal<br />
installations. They allow for compliance with NFPA Pamphlet 58 standards<br />
which state that every container with more than 125 gallons water<br />
capacity built after July 1, 1961, has a connection for liquid evacuation,<br />
at least 3 /4" NPT size, and that every container designed for stationary<br />
use contains no more propane than 5% of their water capacity during<br />
transportation.<br />
Chek-Lok Adapters<br />
It is recommended that these brass adapters (7572C-14A and<br />
7572C-15A) should be connected to ECII ® Chek-Lok excess flow<br />
valves to open the check mechanism properly. A built-in nylon<br />
gasket provides a gas-tight seal.<br />
CAUTION: Wear approved protective gloves and eye protection<br />
when working with Chek-Loks. Do not vent LP-Gas near possible<br />
sources of ignition.<br />
Use an ECII ® 7550P angle valve with an ECII ® adapter 7572C-<br />
14A ( 3 /4" NPT female connection) or 7572C-15A ( 3 /4" NPT male<br />
connection). Use an ECII ® 7550P without an adapter in an<br />
emergency only.<br />
7572FC & 7580FC<br />
Chek-Lok ®<br />
Excess Flow Valves<br />
To Put Chek-Lok In Service<br />
1. Use an ECII ® 7550P angle valve or assemble a suitable capacity shutoff<br />
valve such as an ECII ® A7505AP, A7506AP or 7705P to ECII ®<br />
adapters (see below).<br />
2. Loosen 8594-3A plug to vent accumulated LP-Gas from Chek-Lok.<br />
If venting does not stop, retighten plug and use other approved<br />
means to withdraw liquid.<br />
NOTE: Use a suitable size wrench to remove cap and adapter so as<br />
to not remove Chek-Lok from tank at the same time.<br />
3. Close shut-off valve to permit excess flow valve to open.<br />
4. If for some reason the Chek-Lok does not open after following this<br />
procedure, then it is a simple matter to equalize pressures by<br />
introducing vapor pressure from the vapor return valve on top of the<br />
tank to the downstream side of the Chek-Lok or by pumping liquid<br />
back through the Chek-Lok.<br />
To Re-Lock Chek-Lok<br />
1. Tank pressure must be in excess of 35 PSIG.<br />
2. Close shut-off valve and disconnect hose or piping.<br />
3. Open shut-off valve fully. Liquid discharging to atmosphere should<br />
cause the excess flow valve to close, provided tank pressure is 35<br />
PSIG or more. If, for any reason, the excess flow valve does not<br />
close, the shut-off valve must be closed immediately and must not<br />
be removed until the system can be evacuated and the unit repaired.<br />
4. After the excess flow valve closes, remove ECII ® adapter or pipe<br />
nipple to which shut-off valve is attached.<br />
5. Clean face of Chek-Lok and install 8594-3A plug with 8594-1A<br />
gasket.<br />
IMPORTANT: Use only 8594-3A plug. Do not use standard pipe plug.<br />
Chek-Lok Mounting<br />
ECII ® Chek-Lok valves may be bottom mounted or top mounted with<br />
a dip tube. For bottom mounting, it is preferable to position the coupling<br />
in the shell or head, slightly off bottom, to avoid accumulation of sludge,<br />
etc..., around the check valve which could affect the proper operation<br />
of the excess flow valve.<br />
Top Opening<br />
Open<br />
Closed<br />
Bottom Opening<br />
7550P<br />
7572C-14A<br />
8594-3A<br />
Chek-Lok Plug<br />
Head Opening<br />
7572FC or 7580FC<br />
Chek-Lok Valve<br />
Excess Flow<br />
Valve Closed<br />
Excess Flow<br />
Valve Open